# any idea what fractal algorithm might generate this shape?

I Found this image around, and i'm curious what algorithm generates this kind of shape

In particular, i'm curious how the flow lines are generated, since usually the Mandelbrot iteration just generates different regions depending on the steps required to get into divergence

The algorithm maybe external argument / field lines :

http://fraktal.republika.pl/cpp_argphi.html

http://linas.org/art-gallery/escape/phase/phase.html